All versions of the badge feature a skull and crossed bones at the base, with a laurel wreath of oak leaves around the sides and a sword in the center. The sword's handle has the "sun-wheel" swastika, with the blade plunged into the "Hydra", whose five heads represent the "partisans". The second version of the badge had larger oak leaves in the wreath and a larger "sun-wheel" swastika. [3] Historian Phillip W. Blood notes the similarities between the symbol of the occultist Thule Society , with a sword and a swastika, and the design of the badge. He suggests that Himmler and Erich von dem Bach-Zalewski "had sealed [...] Germanic mythology into a medal for Lebensraum". [4]